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Pale green digital G-Shock with bio-based resin case and strap, round 43.80mm case, buckle clasp

CASIO

CASIO G-Shock GMD-B300-3 Pale Green Dial Quartz Watch 200m 43.80mm

SKU CH-AQEC-8RY3K

A shock-resistant digital sports watch with a pale green dial, bio-based resin case and strap, quartz movement, mineral crystal and 200 m water resistance

  • Watch movementQuartz
  • Product shapeRound
  • Watch face colorGreen
  • Display typeDigital
  • Date displayDate
  • Strap materialResin
  • Shock-resistant construction protects daily wear
  • 200 m water resistance suits swimming and diving
  • Bio-based resin case and strap reduce environmental impact
  • Quartz movement keeps accurate time with low maintenance
  • Digital display shows month, day and date at a glance

Purpose and Audience

The Casio G-Shock GMD-B300-3 is a quartz sports watch built for women who want a tough, everyday timepiece. Its bio-based resin case and strap reduce reliance on fossil-based plastics while keeping the classic G-Shock structure. The pale green dial and digital display give it a distinct look suited to casual wear and active routines.

Water Resistance and Daily Durability

The watch is rated to 200 metres of water resistance, so it handles swimming, snorkelling and heavy rain without issue. A mineral crystal protects the digital display from everyday knocks and scratches. Shock-resistant construction absorbs impacts from drops or bumps during sport or commuting. The buckle clasp keeps the resin strap secure on the wrist.

Sustained Use and Power

Quartz movement runs continuously from a battery without the winding or charging routines of mechanical or smart watches. The digital module shows month, day and date alongside the time, all legible at a glance. Bio-based resin materials maintain their shape and finish through long-term exposure to sweat, UV and temperature swings. No daily charging or syncing is required to keep core functions running.

How it compares

Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.

Price $88.99
Cheaper than about 61% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameCASIO
Design styleSports
Watch face colorGreen
Item conditionNew
Display
Display typeDigital
Size & build
Main materialResin
Product shapeRound
Strap materialResin
Closure typeBuckle Clasp
Bezel typeFixed Bezel
Housing materialResin
Case size43.8 mm
Watch glassMineral Crystal
Environment & compliance
Water resistance200m
More details
Watch movementQuartz
Date displayDate
Suitable forFemale

Questions about this item

How do I pair this GMD-B300-3 with a smartphone for the first time, and which step is commonly missed?

Download the CASIO WATCHES app, enable Bluetooth on the phone, then hold the watch's adjust button until the pairing screen appears; the step often missed is granting the app location permission, which is required for the connection to complete.

What maintenance will the bio-based resin strap and case need over time?

Rinse the resin case and strap with fresh water after salt or chlorine exposure, wipe dry, and avoid prolonged direct sunlight to slow material aging; the buckle clasp pin should be checked occasionally for secure fit.

At what depth does the 200 m water-resistance rating reach its practical limit during continuous use?

The 200 m rating covers swimming, snorkelling and surface water sports; it is not certified for scuba diving, so sustained pressure at depths approaching that figure should be avoided.

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